If you haven't decided for yourself, take it to a qualified machine shop (or mail it?

), as as alluded to previously, it would require an inspection of the damage of concern (i.e.: scoring?

), condition of the component journals otherwise (i.e.: journal shapes for round, tapper & saddle-backing, etc.

), current state otherwise (magnaflux for cracks, check for strait, if or what it might already be turned down too, etc.

)?
Scott.